A) DNA
B) mRNA
C) rRNA
D) tRNA
2007-02-18 15:27:39 · 6 answers · asked by truth hurts 4 in Science & Mathematics ➔ Biology
Protein synthesis takes place in a cytoplasmic organelle called a ribosome. Ribosomes are made of rRna. Messenger RNA (mRNA) copies the code for the protein off the DNA in the nucleus, then exits the nucleus and travels down the endoplasmic reticulum to the ribosome where it is then transcribed. Transfer RNA's (tRNA) bring amino acids into the ribosome where they are matched up to the codon on the mRNA. Once they link up, the amino acids are linked together by dehydration synthesis to form a protein. The mRNA exits the ribosome (rRNA) and the tRNA's leave the ribosome to pick up another amino acid. The mRNA is then used again at another ribosom.
Your answer is DNA as it never leaves the nucleus and protein synthesis takes place in the cytoplasm.
ANATOMY/BIOLOGY TEACHER
2007-02-18 15:36:58 · answer #1 · answered by CAROL P 4 · 0⤊ 0⤋
A) DNA, in Eukaryotes.
In prokaryotes, protein translation and RNA transcription are not separated. Protein synthesis can be taking place from a copy of mRNA before it is completely transcribed.
2007-02-18 17:25:53 · answer #2 · answered by BP 7 · 0⤊ 0⤋
DNA isn't found. tRNA carries the anticodon into the ribosome and mRNA carries the codon. rRNA is involved in protein sythesis. DNA is involved in transcription, but not translation.
2007-02-18 18:00:13 · answer #3 · answered by tcu_twin 1 · 0⤊ 0⤋
A) DNA (in eukaryotes, anyway)
2007-02-18 15:32:59 · answer #4 · answered by Anonymous · 0⤊ 1⤋
Yep- (a.) DNA. = )
2007-02-18 15:34:07 · answer #5 · answered by Miss*Curious 5 · 0⤊ 1⤋
C
2016-05-24 05:45:30 · answer #6 · answered by Anonymous · 0⤊ 0⤋